Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine

940446

03/01/1994

Event
International Congress & Exposition
Authors Abstract
Content
Up to 80 percent of the total hydrocarbons emitted during the EPA Federal emissions test are produced in the first five minutes of this procedure. It has been theorized that this is in part due to wall wetting of the intake port and cylinder.
This study measures the behavior of the fuel film thickness in the intake port during cold starting, steady state and transient operation. Three injector spray patterns with varying droplet sizes were utilized for the tests. The fuel film thickness in the intake port of a Ford 1.9L engine was measured using optical sensors. It was found that the spray pattern and droplet size affected the port wall wetting characteristics.
Meta TagsDetails
DOI
https://doi.org/10.4271/940446
Pages
23
Citation
Bourke, M., and Evers, L., "Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine," SAE Technical Paper 940446, 1994, https://doi.org/10.4271/940446.
Additional Details
Publisher
Published
Mar 1, 1994
Product Code
940446
Content Type
Technical Paper
Language
English